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Finding the Fourth Proportional to 65,123.68, 97,700.26 and 20,752.96

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Solution

The fourth proportional to 65,123.68, 97,700.26 and 20,752.96 is: 31,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,123.68 : 97,700.26 = 20,752.96 : x
  2. Step 2: Convert to fraction form
    65,123.68/97,700.26 = 20,752.96/x
  3. Step 3: Cross multiply
    65,123.68x = 97,700.26 × 20,752.96
  4. Step 4: Simplify right side
    65,123.68x = 2,027,569,587.77
  5. Step 5: Solve for x
    x = 2,027,569,587.77/65,123.68
  6. Step 6: Final answer
    x = 31,134.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.